Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d803cbc4dd0b58e…

MALICIOUS

PDF

39.5 KB Created: 2020-08-01 12:17:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 595d99bdaff07781368726f0a7b28fb9 SHA-1: e7a8345cd3968f1b872cafb587cfafeb6e6c0179 SHA-256: 6d803cbc4dd0b58e6909b34af7c6d64a8b205c8c7677b4f99a506efdbad424a4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body, though obfuscated, contains a URL that matches the redirector found in the heuristics. The presence of a link farm suggests an attempt to distribute malicious content or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=serena+bloodfeather+vanilla In PDF document text
    • http://files.infieldrakes.com/uploads/1/3/0/7/130775897/02b962d4858a.pdfIn PDF document text
    • http://files.bridaltraditionsnc.com/uploads/1/3/1/1/131164236/jotubuzosowa.pdfIn PDF document text
    • http://files.beyondthegap.org/uploads/1/3/1/0/131070362/fejudala-dopapepesaxekov-denubuz.pdfIn PDF document text
    • http://files.ice-fyre.ca/uploads/1/3/0/8/130874359/toxilepexafamut.pdfIn PDF document text
    • http://files.ramsportsnetwork.com/uploads/1/3/1/3/131381021/zumorotanosunufob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/mufuvevedipejafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rerotapok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/xodiwopukosiwojafexutigaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/6026492331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/zikex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2157/4049/files/29009178402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7083/3319/files/42092757126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/nidajowegupawotadonavutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4929/4756/files/universal_serial_bus_controllers_driver_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2862/7108/files/64625636589.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: leguesepticservices.com 10 samples

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5783 5120 bytes
SHA-256: 697150d24fa57067d2850007a0ba70d392ff3230cdcb0bb94938efadf3d9b8a4
font_01_sfnt_off000068ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68EA 12728 bytes
SHA-256: a8fc3b63afe153fb61074f41a5dbf8667f9cf76bb0518ec959434c4de1d3f05e

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